Scootabot

Lightweight / Folding / Portable EVs - seats optional
Ianhill   1 MW

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Re: Scootabot

Post by Ianhill » Dec 04 2018 11:26am

Check out my razor e300 ultra thread in there I show SCS bars and clamp that's what all the stunt scooter riders prefer to abuse with backflips, the handle bars I got where chromo 4130 there's lots of titanuim oversized bars around that is an easy fit for a 1 1/8th steerer tube, they use SCS bars and clamp because there's no slit at the bottom of the bars for a crack to break out of.

The threadless headsets take seconds to swap out bearings plus come with cartridge bearings for extremely cheap follow the modern mountain bike that's what the scooter industry does pinch parts so they cheap.

My ultimate set up would be like i mentioned, a tapered titanuim head tube with internal integrated bearing cup link below, with a 1 1/8th bearing on top and a 1 1/4th bottom bearing and a fork with matching steerer tube, that way I can still use the stunt scooter selection of bars with an SCS clamp and a real rigid fork assembly that allows the fork to hug the frame.

http://www.paragonmachineworks.com/fram ... -long.html

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Emoto   10 kW

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Re: Scootabot

Post by Emoto » Dec 06 2018 9:38am

Good news -- bad news and lesson learned the good is fork mount hole is drilled the bad is its got 8/10mm of run-out at axel :roll:
So ill take it back, and suggest a brass / stainless insert and re-drill STRAIGHT.

Old lessen learned. when i ask how are you going to get it straight dont except ..arr dont worry for an answer talk it through, he's a good dude so im sure it will be all good.
Welds pics :D
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Emoto   10 kW

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Re: Scootabot

Post by Emoto » Dec 12 2018 5:11am

Here is a piece i can knock off the list - rear drive hub redrilled/tapped to m6 from m5 , i saw a online calc that stated 6xm5 in a 44mm bcd ,around 240nm so going to m6 gives me some piece of mind... On too the Next piece of the puzzle.
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Emoto   10 kW

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Re: Scootabot

Post by Emoto » Jan 08 2019 9:32am

So here is a thing im contemplating atm
i love the simplicity of a hub / silence / freewheeling ability, and ive found a big one 9/10kg has a 8 x 8'' rim.
the magnet width is 60mm not that big but still trying to get specs on stator diameter. im hoping that weight is windings ect.
This could have great potential /power.
My biggest hurdle and ive looked hard, is to get a tyre around 13/14'' the smallest ive found is 16''
So if you know of one please link :pancake:
Edit tried kart and mower tyres
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BLDC-motor.jpg
BLDC-motor.jpg (67.71 KiB) Viewed 316 times

Pyon   10 µW

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Re: Scootabot

Post by Pyon » Jan 28 2019 2:03pm

Hi Emoto, have you decided on your hub wheel yet? I was looking into hub wheel but could not find a decent ATV tyre to match it on 14/15inch (tyre size), so i gave up and went for 6" Kart wheels instead.

Looking forward the rest of your build progressing :)

Ianhill   1 MW

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Re: Scootabot

Post by Ianhill » Jan 28 2019 9:09pm

Simple way to rate the hub is to look at the phase wires I'd say the hub in the picture will be happy around 40 battery amps maybe 60amp bursts with some trial tests, what type of power are you after do you have a controller in mind ?

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Emoto   10 kW

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Re: Scootabot

Post by Emoto » Jan 29 2019 10:24am

Pyon wrote:
Jan 28 2019 2:03pm
Hi Emoto, have you decided on your hub wheel yet? I was looking into hub wheel but could not find a decent ATV tyre to match it on 14/15inch (tyre size), so i gave up and went for 6" Kart wheels instead.

Looking forward the rest of your build progressing :)
YES finally decided on motor will post to confirm once ordered, its A big hub and powerful .
I have finally scraped the reduction belt idea as no good in sand, the hub will be virtually maintenance free / silent / freewheeling / uncomplicated regen ect
Its going to be heavy --dam heavy , but that weight is going to be about as low as you can get so im gambling on that besides its going to have at least 3+ times the torque of a 6'' hub :shock: and thats exciting and fueling me... :roll: wont need any future motor upgrades
.

Good question on tyre and this has been bothering me for quite some time, heaps of hours and i found a 15'' tyre.
Im waiting on a reply on weight, its from usa and they want 80 us for shipping witch bothers me .
There is a 15'' atv flat track tyre from Hoosier but there used on dirt and pos not durable on tarmac,

Ianhill thats what most suppliers quote on amps and yeah those phase wires are thin im getting thicker phases apparently.
But lets see what i get. Power ... lots!! :D

Pyon   10 µW

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Re: Scootabot

Post by Pyon » Jan 29 2019 3:07pm

Emoto wrote:
Jan 29 2019 10:24am
Good question on tyre and this has been bothering me for quite some time, heaps of hours and i found a 15'' tyre.
Im waiting on a reply on weight, its from usa and they want 80 us for shipping witch bothers me .
There is a 15'' atv flat track tyre from Hoosier but there used on dirt and pos not durable on tarmac,
Is it going to be a 8inch hub? Would you be okay to share a link?

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Emoto   10 kW

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Re: Scootabot

Post by Emoto » Jan 30 2019 8:10am

Pyon if you mean motor im still working out details with motor suppler so ill post link when i get it, that way ill know if he's worth sharing or not . And yeah its a 8 inch rim.
So far he has been the best with details, some suppliers cant even answer questions , its been 2 weeks of emailing to narrow it down

On the tyre search dixie chopper they are 15x6x8 but getting that to Aus is 200 aus$. the tyre has a nice road profile .
Id get that over a hoosier 15'' as im guessing there. to soft.
And im gunna have to stretch the tyre to fit that fat rim... might just look hardcore if i manage it :D
But today ive also found a 15x6.5x8 turfmaster This could be the winner for me on road and sand.

And i forgot to say going to a hub Has allowed me to redesign to incorporate rear suspension and im dam happy about that. so my design has flipped again.

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Emoto   10 kW

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Re: Scootabot

Post by Emoto » Feb 13 2019 8:38am

Life is throwing its challenges at me atm like never before... and slowing the build add to that Chinese new year , but that's not going to stop me right!!
So a while back the engineer drilled the fork pivot of center well thats fixed now with a brass bush, and alloy front wheel spacer done.
All nice and straight Now
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SAM_4442.JPG

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Emoto   10 kW

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Joined: Jun 13 2011 9:31am
Location: Australia

Re: Scootabot

Post by Emoto » Apr 15 2019 8:46am

The life challenges i spoke of before where i had to go to hospital for a procedure as the wanted to have a good look at me... i had to wait 7 months,But results where ALLLL GOOD :mrgreen: .
So im in a much better frame of mind to move forward on this scooter.
Might take a step back on motor size as the all up weight with tyre was was a dizzy 14kg :shock: , to ill pro go witha 6'' rim size motor.
So just doing final measurements on down tube and hope to cut that ect... Life is good......

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